Its a rocket sled.The damn thing is a rocket, doesn't need any air, it has its own sources of compressed gases which its ignites for trust.....doesn't make a difference what time of day it is
If it is a jet engine that needs external oxygen for trust, it is going so effin fast it doesn't make a difference whether its day or night, and how can it be getting hot manifold air??? lol and intake would get the same temperature of air no matter where the opening is unless its located in the trust flame gases. :lol:
I'm pretty sure thats a rocket.